Apologies, then, my knowledge of the state of music services is apparently quite outdated. Has Deezer always offered a free tier? They're not really on my radar.

In either case, I do think some of the points the other comment made are prescient. Spotify Connect is definitely a killer feature and I think Spotify Wrapped is one of those cultural phenomenon that you can't reliably predict the impact of. Network effects definitely seem to be quite powerful.